How low can one hear Huh?? Say again

golix, stop playing this signal in your headphones. You are bottoming out the drivers. The signal, as you note, is coming through fine, but the headphones cannot reproduce it.

Try it on speakers that can go below 35 Hz or at least have some signal below that.

Granted there are major differences in music reproduction/perception between speakers and 'phones but I fail to see the relevance when it comes to a pure tone (sine wave) as long as it reaches the ear at a high enough level to be perceived.

On a different tack: We all know that bats use ultrasound to "see" and that we cannot hear this.
It was recently discovered that elephants use infrasound (ie below 20Hz) to communicate we just never knew because we don't hear it! Apparently you can stand in the open savannah halfway between two elephants, which can be miles apart, and they are "chatting" to each other whilst you hear nothing!
I think we can feel very low frequencies if we are in an enclosed space but we can't actually hear them and in open space where nothing resonates in sympathy we don't feel them either.

golix

elephants also hear (feel) through their feet from many miles away. I was watching a show the other night regarding this and at one point all the elephants in the herd would raise one front foot off the ground at the same time in response to far away sound? Falling to sleep at about this time I did not get a clear enough picture of this to fully understand.

Sorry to go off topic but your post made me remember this.

Dave

At some point you feel the pressurization of the frequency rather than the sound of it. At one time I knew at what frequency this starts, but I no longer recall.

not sure about his review...but a young healthy person's hearing range is about 20Hz to 20kHz